Question

O2Hg=Hg+O Cl2Cu+K(OH)= OZn+HCl= Al+HCl= BaCl2+Na2So4

Answer 1

2HgO = 2Hg + O2

Cu + Cl2 + 2KOH = Cu(OH)2 + 2KCl

Zn + 2HCl = ZnCl2 + H2

2Al + 6HCl = 2AlCl3 + 3H2

Na2SO4+BaCl=2NaCl+BaSO4

Answer 2

Let's go through each chemical equation one by one:

1. O2 + Hg → HgO In this equation, oxygen (O2) reacts with mercury (Hg) to form mercury(II) oxide (HgO).

2. Cl2 + Cu + 2KOH → K2CuO2 + 2KCl + H2O Chlorine gas (Cl2) reacts with copper (Cu) and potassium hydroxide (KOH) to produce potassium cuprate (K2CuO2), potassium chloride (KCl), and water (H2O).

3. Zn + 2HCl → ZnCl2 + H2 Zinc (Zn) reacts with hydrochloric acid (HCl) to produce zinc chloride (ZnCl2) and hydrogen gas (H2).

4. 2Al + 6HCl → 2AlCl3 + 3H2 Aluminum (Al) reacts with hydrochloric acid (HCl) to form aluminum chloride (AlCl3) and hydrogen gas (H2).

5. BaCl2 + Na2SO4 → BaSO4 + 2NaCl Barium chloride (BaCl2) reacts with sodium sulfate (Na2SO4) to produce barium sulfate (BaSO4) and sodium chloride (NaCl).

Please note that the chemical equations provided are balanced, meaning that the number of atoms of each element is equal on both sides of the equation.